Greenhouse 100 Polluters Index (2023 Report, Based on 2021 Data)


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30 CF Industries 17,961,967 15% 45% 50% Chemicals
67 Linde 9,451,344 19% 65% 17% Chemicals
100 Nutrien Ltd. 6,387,111 16% 44% 29% Chemicals
57 SK Capital Partners 10,607,791 13% 43% 81% Chemicals, Other, Waste
46 Air Products & Chemicals 12,455,741 15% 66% 21% Chemicals, Power Plants
95 Westlake Chemical 6,616,403 16% 35% 42% Chemicals, Power Plants, Other
35 Dow Inc. 16,562,065 17% 48% 30% Chemicals, Power Plants, Waste, Petroleum and Natural Gas Systems, Other
74 LyondellBasell Industries 8,339,428 18% 77% 25% Chemicals, Refineries, Other
22 Koch Industries 23,053,118 0.4% 13% 48% 18% Chemicals, Refineries, Pulp and Paper, Minerals, Waste, Other
15 Cleveland-Cliffs 28,741,138 0.5% 21% 57% 26% Metals, Minerals, Other, Waste
26 United States Steel 20,099,414 18% 45% 52% Metals, Waste, Other
48 Holcim Group 12,135,937 12% 40% 25% Minerals
93 Buzzi Unicem 6,835,347 11% 39% 28% Minerals
96 CRH PLC 6,594,878 9% 44% 20% Minerals
97 HeidelbergCement 6,591,986 10% 29% 29% Minerals
94 Invesco 6,757,745 16% 28% 32% Other
51 Archer Daniels Midland 11,235,811 14% 20% 37% Other, Chemicals, Pulp and Paper, Waste
65 Williams Companies 9,685,669 11% 39% 22% Petroleum and Natural Gas Systems
70 Cheniere Energy 9,002,782 14% 56% 63% Petroleum and Natural Gas Systems
73 Targa Resources 8,734,277 20% 74% 30% Petroleum and Natural Gas Systems
75 Hilcorp Energy 8,271,923 20% 71% 21% Petroleum and Natural Gas Systems
83 DCP Midstream Partners 7,567,593 12% 45% 18% Petroleum and Natural Gas Systems
90 BPXA 6,946,416 0% 0% 44% Petroleum and Natural Gas Systems
98 TC Energy 6,541,866 20% 63% 3% Petroleum and Natural Gas Systems
56 Occidental Petroleum 10,655,455 13% 59% 24% Petroleum and Natural Gas Systems, Chemicals, Power Plants, Other
50 Enterprise Products Partners 11,395,957 20% 74% 21% Petroleum and Natural Gas Systems, Other, Chemicals
34 Energy Transfer 16,651,350 15% 60% 8% Petroleum and Natural Gas Systems, Other, Power Plants
88 ConocoPhillips 7,125,186 15% 71% 23% Petroleum and Natural Gas Systems, Refineries
69 Shell PLC 9,005,267 16% 53% 38% Petroleum and Natural Gas Systems, Refineries, Chemicals, Other, Power Plants
54 Kinder Morgan 10,933,744 20% 72% 5% Petroleum and Natural Gas Systems, Refineries, Other
39 BP 14,401,071 19% 76% 35% Petroleum and Natural Gas Systems, Refineries, Power Plants, Chemicals, Other
1 Vistra Energy (*) 99,793,085 1.6% 12% 38% 14% Power Plants
13 NRG Energy 32,148,918 0.5% 9% 60% 43% Power Plants
28 AES Corp. 19,500,130 16% 66% 43% Power Plants
32 Associated Electric Cooperative Inc 16,710,688 18% 30% 49% Power Plants
41 Santee Cooper 13,303,619 17% 38% 58% Power Plants
59 Great River Energy 10,107,024 5% 7% 94% Power Plants
61 Buckeye Power 10,051,879 15% 10% 97% Power Plants
62 Colstrip Power Plant (single power plant) 10,035,340 5% 31% 100% Power Plants
64 Laramie River (single power plant) 9,868,313 11% 11% 100% Power Plants
68 Plant Scherer (single power plant) 9,420,858 8% 24% 100% Power Plants
72 Omaha Public Power District 8,882,249 15% 35% 77% Power Plants
79 Craig (power station) 7,831,174 16% 21% 100% Power Plants
82 Tenaska 7,571,008 11% 15% 35% Power Plants
85 Omnigen Global 7,448,325 16% 5% 100% Power Plants
87 Keystone Generating Station (single power plant) 7,267,256 13% 6% 100% Power Plants
89 Intermountain Power Agency 6,975,796 17% 21% 100% Power Plants
91 Starwood Energy Group 6,891,185 12% 38% 41% Power Plants
99 Oglethorpe Power 6,429,167 15% 38% 50% Power Plants
53 Carlyle Group 11,075,672 13% 45% 20% Power Plants, Chemicals
33 Basin Electric Power Cooperative 16,685,508 11% 12% 35% Power Plants, Chemicals, Minerals, Other
7 Energy Capital Partners 43,833,339 0.7% 15% 66% 9% Power Plants, Metals
5 American Electric Power 60,653,224 1.0% 16% 19% 19% Power Plants, Other
19 Evergy Inc. 27,600,757 0.4% 17% 36% 32% Power Plants, Other
27 LS Power 19,721,007 17% 60% 28% Power Plants, Other
37 FirstEnergy 15,867,085 18% 9% 69% Power Plants, Other
40 Pinnacle West Capital 14,366,286 21% 68% 55% Power Plants, Other
43 Lower Colorado River Authority 13,085,953 13% 33% 84% Power Plants, Other
44 OGE Energy 12,601,951 16% 41% 27% Power Plants, Other
45 Prairie State Energy Campus (facility) 12,496,789 8% 7% 100% Power Plants, Other
71 East Kentucky Power Cooperative 8,941,223 18% 9% 89% Power Plants, Other
78 Nebraska Public Power District 7,864,613 10% 16% 85% Power Plants, Other
11 Entergy 37,468,076 0.6% 18% 51% 20% Power Plants, Other, Petroleum and Natural Gas Systems
52 Fortis 11,132,674 20% 55% 76% Power Plants, Other, Petroleum and Natural Gas Systems
3 Duke Energy 79,435,840 1.3% 14% 29% 12% Power Plants, Other, Petroleum and Natural Gas Systems, Waste
55 Salt River Project 10,861,072 12% 41% 36% Power Plants, Other, Waste
6 U.S. Government 44,132,421 0.7% 15% 44% 24% Power Plants, Other, Waste, Petroleum and Natural Gas Systems, Chemicals
20 ArcLight Capital Partners 26,774,448 0.4% 17% 59% 26% Power Plants, Petroleum and Natural Gas Systems
24 WEC Energy Group 22,000,482 12% 31% 32% Power Plants, Petroleum and Natural Gas Systems
38 Alliant Energy 15,536,680 10% 16% 41% Power Plants, Petroleum and Natural Gas Systems
49 CPS Energy 11,980,812 19% 78% 67% Power Plants, Petroleum and Natural Gas Systems
58 Ares Management 10,228,535 15% 59% 29% Power Plants, Petroleum and Natural Gas Systems
14 DTE Energy 30,430,679 0.5% 18% 26% 47% Power Plants, Petroleum and Natural Gas Systems, Metals
36 Blackstone 15,959,323 13% 16% 42% Power Plants, Petroleum and Natural Gas Systems, Minerals
4 Berkshire Hathaway 72,113,565 1.1% 14% 36% 15% Power Plants, Petroleum and Natural Gas Systems, Minerals, Other, Metals, Chemicals, Refineries
2 Southern Company 82,113,848 1.3% 15% 48% 26% Power Plants, Petroleum and Natural Gas Systems, Other
8 Xcel Energy 42,285,182 0.7% 13% 40% 23% Power Plants, Petroleum and Natural Gas Systems, Other
10 NextEra Energy 38,038,319 0.6% 15% 54% 19% Power Plants, Petroleum and Natural Gas Systems, Other
12 Dominion Energy 34,263,092 0.5% 15% 46% 16% Power Plants, Petroleum and Natural Gas Systems, Other
16 PPL Corp. 28,346,505 0.4% 17% 24% 37% Power Plants, Petroleum and Natural Gas Systems, Other
17 Ameren 28,088,792 0.4% 10% 24% 56% Power Plants, Petroleum and Natural Gas Systems, Other
31 CMS Energy 17,897,853 22% 46% 47% Power Plants, Petroleum and Natural Gas Systems, Other
63 Riverstone Holdings 9,950,433 14% 41% 26% Power Plants, Petroleum and Natural Gas Systems, Other
66 Public Service Enterprise 9,573,770 14% 61% 21% Power Plants, Petroleum and Natural Gas Systems, Other
76 Emera 8,252,898 15% 54% 38% Power Plants, Petroleum and Natural Gas Systems, Other
77 Exelon 8,012,959 15% 50% 28% Power Plants, Petroleum and Natural Gas Systems, Other
80 NiSource 7,811,012 15% 28% 59% Power Plants, Petroleum and Natural Gas Systems, Other
81 Seminole Electric Cooperative 7,795,400 24% 38% 79% Power Plants, Waste
29 Macquarie 19,042,958 15% 44% 33% Power Plants, Waste, Other, Refineries
92 WestRock 6,871,742 15% 39% 18% Pulp and Paper, Waste
86 PDVSA (Petroleos de Venezuela S.A.) 7,338,194 11% 43% 57% Refineries, Chemicals
23 Valero Energy 22,924,979 0.4% 17% 71% 13% Refineries, Chemicals, Other
84 HF Sinclair Corporation 7,548,416 14% 31% 24% Refineries, Chemicals, Petroleum and Natural Gas Systems
25 Chevron 21,629,203 14% 67% 21% Refineries, Chemicals, Petroleum and Natural Gas Systems, Power Plants, Waste, Other
47 PBF Energy 12,407,049 15% 68% 27% Refineries, Chemicals, Power Plants
21 Phillips 66 24,589,430 0.4% 14% 65% 13% Refineries, Chemicals, Power Plants, Petroleum and Natural Gas Systems, Waste, Other
9 Exxon Mobil 38,121,045 0.6% 15% 57% 31% Refineries, Petroleum and Natural Gas Systems, Power Plants, Chemicals, Other
18 Marathon Petroleum 27,642,752 0.4% 16% 73% 25% Refineries, Power Plants, Chemicals, Petroleum and Natural Gas Systems, Other
42 Waste Management Inc. 13,181,664 13% 51% 2% Waste
60 Republic Services 10,086,226 14% 59% 4% Waste

Explanatory notes (For details, see the technical notes).

This edition of the Greenhouse 100 ranks companies by C02-equivalent greenhouse gas emissions (including CO2, methane, nitrous oxide, and fluorinated gases, but not biogenic CO2) directly released by large facilities in the US in 2021.

Percentage of 2021 U.S. greenhouse gas emissions from all sources: parent corporation or entity's percentage of all U.S. greenhouse gas emissions, including electric power, transportation, industrial, commercial, residential, and agricultural emissions, the total of which is 6,347.7 million metric tons of CO2 equivalents according to the 2021 U.S. Inventory of Greenhouse Gas Emissions and Sinks.  Source: US EPA.

Environmental Justice (EJ): Poor Share and Minority Share: Shares of the potential co-pollutants of combustion borne by people living below the poverty line or by people in minority racial/ethnic groups. In the U.S. population, 10.5 percent lived below the poverty line in 2020 and 40 percent are members of minority racial/ethnic groups.  
Sources: US EPA, US Census, and CTIP.

The links from each parent name lead to an application that gives detailed facility and sector information about the company. You can also search for companies not on the Greenhouse 100. For more information on the data, see the technical notes.

* The initial publication of the Greenhouse 100 Polluters Index (2023 Report, Based on 2021 Data) reported 112.38 million mt CO2e for Vistra Energy. Two facilities (W H Sammis, Pleasants Power Station) were assigned to Vistra Corp based on Vistra's acquisition of Energy Harbor but were in fact divested by Energy Harbor prior to the acquisition by Vistra. A third facility, Viking Energy of Lincoln LLC, was reported by US EPA with Vistra as the parent company name; Vistra indicates that the parent company assignment was inaccurate. With the updated ownership information for these facilities, corrected 2021 emissions for Vistra were 99.79 million mt CO2e.